main.py 文件源码

def on_release(self):

        label = Label(size_hint_y=None,size_hint_x=None)

        label.bind(texture_size=label.setter('size'))

        fob = open("help.txt")

        label.text = fob.read()

        fob.close()

        content = ScrollView(size_hint=(1,1))

        content.add_widget(label)

        popup = Popup(title="Help",content=content,size_hint=(0.6,0.6)).open()